Base | Representation |
---|---|
bin | 111001011010… |
… | …1101111010100 |
3 | 2002122110122200 |
4 | 1302311233110 |
5 | 30201321112 |
6 | 2553124500 |
7 | 513612213 |
oct | 162655724 |
9 | 62573580 |
10 | 30104532 |
11 | 15aa1a87 |
12 | a0b9730 |
13 | 6310743 |
14 | 3dd907a |
15 | 2999cdc |
hex | 1cb5bd4 |
30104532 has 72 divisors (see below), whose sum is σ = 79298856. Its totient is φ = 9621504.
The previous prime is 30104519. The next prime is 30104533. The reversal of 30104532 is 23540103.
30104532 is a `hidden beast` number, since 30 + 104 + 532 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 5363856 + 24740676 = 2316^2 + 4974^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30104533) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129088 + ... + 129320.
It is an arithmetic number, because the mean of its divisors is an integer number (1101373).
Almost surely, 230104532 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30104532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39649428).
30104532 is an abundant number, since it is smaller than the sum of its proper divisors (49194324).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30104532 is a wasteful number, since it uses less digits than its factorization.
30104532 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 377 (or 372 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 30104532 is about 5486.7596994948. The cubic root of 30104532 is about 311.0837269359.
Adding to 30104532 its reverse (23540103), we get a palindrome (53644635).
The spelling of 30104532 in words is "thirty million, one hundred four thousand, five hundred thirty-two".
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